package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.SetmealDTO;
import com.sky.dto.SetmealPageQueryDTO;
import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.SetmealService;
import com.sky.vo.DishItemVO;
import com.sky.vo.SetmealVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

@Slf4j
@Service
public class SetmealServiceImpl implements SetmealService {

    @Autowired
    private SetmealMapper setmealMapper;

    @Autowired
    private SetmealDishMapper setmealDishMapper;

    @Autowired
    private DishMapper dishMapper;

    @Override
    public void saveWithSetmeal(SetmealDTO setmealDTO) {
        Setmeal setmeal = new Setmeal();

        BeanUtils.copyProperties(setmealDTO,setmeal);

        setmealMapper.insert(setmeal);

        Long setmealDTOId = setmeal.getId();

        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        if (setmealDishes!=null&&setmealDishes.size()>0){
            setmealDishes.forEach(setmealDish -> {
                setmealDish.setSetmealId(setmealDTOId);
            });

            setmealDishMapper.insertBatch(setmealDishes);
        }
    }
    @Override
    public PageResult pageQuery(SetmealPageQueryDTO setmealPageQueryDTO) {

        PageHelper.startPage(setmealPageQueryDTO.getPage(),setmealPageQueryDTO.getPageSize());

        Page<SetmealVO> page = setmealMapper.pageQuery(setmealPageQueryDTO);

        return new PageResult(page.getTotal(),page.getResult());
    }

    @Override
    @Transactional
    public void deleteSetmeal(List<Long> ids) {
        for (Long id : ids) {
            Setmeal setmeal=setmealMapper.getById(id);
            if (setmeal.getStatus() == StatusConstant.ENABLE){
                throw new DeletionNotAllowedException(MessageConstant.SETMEAL_ON_SALE);
            }
        }
        for (Long id : ids) {
            setmealMapper.deleteSetmeal(id);

            setmealDishMapper.deleteSetmealDish(id);
        }
    }

    @Override
    @Transactional
    public SetmealVO getByIdWithSetmealDish(Long id) {
        log.info("回：{}",id);
        Setmeal setmeal = setmealMapper.getById(id);
        log.info("显：{}",id);
         List<SetmealDish> setmealDishes = setmealDishMapper.getSetmealDishId(id);
        log.info("数：{}",id);
         SetmealVO setmealVO = new SetmealVO();
        log.info("据：{}",id);
         BeanUtils.copyProperties(setmeal,setmealVO);
         setmealVO.setSetmealDishes(setmealDishes);
        return setmealVO;
    }

    @Override
    public void upDateSetmeal(SetmealDTO setmealDTO) {
        Setmeal setmeal = new Setmeal();
        //因为时间字段所以拷贝到新的实体中
        BeanUtils.copyProperties(setmealDTO,setmeal);
        //操作setmeal表
        setmealMapper.upDateSetmeal(setmeal);
        //操作setmeal_dish表
        setmealDishMapper.deleteSetmealDish(setmeal.getId());
        //通过回显把数据存储到集合中
        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        //判断前端数据
        if (setmealDishes!=null&&setmealDishes.size()>0){
            setmealDishes.forEach(setmealDish -> {
                setmealDish.setSetmealId(setmealDTO.getId());
            });
            //添加套餐菜品
            setmealDishMapper.insertBatch(setmealDishes);
        }

    }

    @Override
    public void startOrStopOfSetmeal(Integer status, Long id) {
        Setmeal setmeal = Setmeal.
                builder().
                status(status).
                id(id).
                build();
        setmealMapper.upDateSetmeal(setmeal);
    }

    /**

     - 条件查询
     - @param setmeal
     - @return
     */
    public List<Setmeal> list(Setmeal setmeal) {
        List<Setmeal> list = setmealMapper.list(setmeal);
        return list;
    }

    /**

     - 根据id查询菜品选项
     - @param id
     - @return
     */
    public List<DishItemVO> getDishItemById(Long id) {
        return setmealMapper.getDishItemBySetmealId(id);
    }

}
